3- The Prophet (SAWA) said, ‘Do not probe for flaws in believers, for a man that probes the flaws of his brother will have Allah probe his own flaws; and when Allah probes the flaws of a man, He will expose him even if he were inside his own home.’
[al-Kafi, v. 2, p. 355, no. 5]

4- The Prophet (SAWA) said, ‘Do not ask the woman who fornicates about her partner in the offense; for just like it was easy for her to commit fornication, so it will be easy for her to accuse an innocent Muslim.’
[al-Tahdhib, v. 10, p. 48, no. 177]

6- Thawr al-Kindi narrated that `Umar b. al-Khattab was making his way through Madina at night when he heard a man singing in his home. He jumped over the fence and said, ‘O Enemy of Allah! Did you think that Allah would conceal you while you disobey Him?!’ The man retorted, ‘And what about you, O commander of the faithful? Do not hasten to punish me, for if I disobeyed Allah once, you did so three times. He has said, ‘Do not spy,’ and you did spy
[on me]. He also said, ‘Enter the homes from their doors,’ but you jumped over my fence and without my permission. And Allah, the Exalted, says, ‘Do not enter homes that are not yours until you are invited in and until you greet their owners.’ `Umar said, ‘Is there any good in you, if I decide to pardon you?’ The man said, ‘Yes.’ Then ÝUmar pardoned him and departed.’
[Kanz al-`Ummal, no. 8827]

جَوازُ التّجَسُّسِ فِي الحُروبِ / Permissibility of Spying In War

7- Imam al-Rida (AS) said, ‘When the Prophet (SAWA) would send an army with a commander that he did not fully trust, he used to send someone whom he trusted to report on the commander’s conduct.’
[Wasael al-Shi`aah , v. 11, p. 44, no. 4]

ما يُؤخَذُ فيهِ بِالظّاهِرِ / What Must Be Given The Benefit Of The Doubt

8- Imam al-Sadiq (AS) said, ‘Five things must be judged with the benefit of the doubt: allegiance, marriage, inheritance, animal slaughtering, and testimonies. If the person appears to be trustworthy, his testimony must be accepted without investigating his inner thoughts.’
[Wasael al-Shi`aah , v. 18, p. 213, no. 1]